Home / 72,009.14-99,390.40-43,738.52

Finding the Fourth Proportional to 72,009.14, 99,390.40 and 43,738.52

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Solution

The fourth proportional to 72,009.14, 99,390.40 and 43,738.52 is: 60,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,009.14 : 99,390.40 = 43,738.52 : x
  2. Step 2: Convert to fraction form
    72,009.14/99,390.40 = 43,738.52/x
  3. Step 3: Cross multiply
    72,009.14x = 99,390.40 × 43,738.52
  4. Step 4: Simplify right side
    72,009.14x = 4,347,188,998.21
  5. Step 5: Solve for x
    x = 4,347,188,998.21/72,009.14
  6. Step 6: Final answer
    x = 60,369.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.